Heat transfer coefficient: a review of measurement techniques

Author(s)

Moreira, Tiago Augusto ^[1] ; Almeida Colmanetti, Alex Roger ^[1] ; Tibirica, Cristiano Bigonha ^[1]

Affiliation

^[1] Univ Sao Paulo, Heat Transfer Res Grp, Dept Mech Engn, Sao Carlos Sch Engn, Ave Trab Sao Carlense 400, BR-13566590 Sao Carlos, SP - Brazil

• Document type: Review article
• Source: Journal of the Brazilian Society of Mechanical Sciences and Engineering; v. 41, n. 6 JUN 2019.
• Web of Science Citations: 0

Abstract

Heat transfer coefficient is a basic parameter used in the calculation of convective heat transfer problems. Due to the importance of the experimental measurements for the development of convective heat transfer, this review identifies, classifies and describes the experimental methods used for the measurement of heat transfer coefficient. The methods were classified into five major groups: (1) direct method, (2) transient method, (3) Wilson method, (4) heat/momentum/mass transfer analogy method and (5) boundary layer thickness method. Their applications, limitations and the reported accuracy were evaluated in the context of new developments in temperature and heat flux measurement techniques. Finally, this review provides criteria for the selection of the most suitable technique for measurements of heat transfer coefficient according to the aspects of spatial resolution, geometric scale, intrusiveness, fluid type, response time and accuracy. (AU)

• FAPESP's process: 16/16849-3 - THEORETICAL AND EXPERIMENTAL ANALYSIS OF HEAT TRANSFER COEFFICIENT, PRESSURE DROP AND FLOW PATTERNS DURING CONDENSATION OF HYDROCARBONS ZEOTROPIC MIXTURES INSIDE TUBES
• Grantee: Tiago Augusto Moreira
• Support Opportunities: Scholarships in Brazil - Doctorate